LASORS 2010 E3.2
E3.2 UK IMC RATING FLYING TRAINING/ EXPERIENCE REQUIREMENTS
When applying for an IMC Rating you must produce logbook evidence of having met the following flying requirements:-
a. 25 hours total experience as pilot of aeroplanes following PPL issue and which must include (b), (c),(d) & (e) below.
b. 10 hours as Pilot in Command of aeroplanes to include (c) below.
c. 5 hours as Pilot in Command of aeroplanes on cross-country flights.
d. 15 hours as Pilot under Training in instrument flying with an instructor in a dual controlled aeroplane (during IMC course). Up to 5 hours of which may be in a JAR-STD device qualified BITD, FNPT I, FNPT II or up to 2 hours of which may be in other FSTDs recognised by the Authority.
e. 10 hours total flight time by sole reference to instruments (during IMC course).
Looks fairly self evident to me!